A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6685-01-391-6010
NSN 7035-01-496-9069
NSN 5990-01-423-2219
NSN 6320-00-164-4087
NSN 5855-01-175-3990
NSN 5999-01-203-5822
NSN 5998-01-383-5783
NSN 5945-00-050-6669
NSN 6105-00-981-7142
NSN 6610-01-248-4339
NSN 6240-01-277-3762
NSN 6150-00-228-3093